A novel synthesis of hierarchical porous carbons from resol by potassium acetate activation for high performance supercapacitor electrodes

作者：Zhang, Jinliang; Zhang, Wenfeng^*; Zhang, Hao; Pang, Jie; Cao, Gaoping; Han, Minfang; Yang, Yusheng

来源：Journal of Alloys and Compounds, 2017, 712: 76-81.

DOI：10.1016/j.jallcom.2017.04.066

• Resol
• Porous carbon
• Potassium acetate
• Supercapacitors

A novel strategy for the synthesis of hierarchical porous carbons (HPCs) from resol by potassium acetate activation for advanced supercapacitor electrodes was reported.
The resultant HPCs with a high specific surface area up to 1201 m(2) g(-1) as a supercapacitor electrode exhibits a high specific capacitance of 226 F g(-1) at 0.05 A g(-1). Besides, the electrode shows high rate capability with 62.4% retention from 0.05 to 20 A g(-1). Moreover, it demonstrates good cyclic stability, showing a high capacitance retention of 97.1% over 5000 charge-discharge cycles at 2.0 A g(-1). The facile, efficient and template-free synthesis strategy for novel 3D-HPCs may promote commercial application of HPCs in the fields of supercapacitors.

• 出版日期2017-7-25
• 单位中国矿业大学（北京）